. >>> the other big story, it is four weeks until election day. >> president obama in san francisco late last night, stepped up his attacks on mitt romney's debate performance, saying it wasn't leadership, but instead salesmanship. >> but the latest poll taken after the debates, shows romney swinging ahead of the president, 49% to 45%. that's mainly due to a surge in support for romney from women voters. abc's karen travers has more on the campaign trial. >> reporter: shifting focus to foreign affairs, mitt romney launched a scathing attack on president obama's policies and leadership overseas. >> it's time to change course in the middle east. it's clear that the risk of conflict in the region is higher now than when the president took office. >> reporter: so far, the economy has dominated the campaign debate. but the romney campaign tried to seize on questions and criticism about the president's handling of last month's attack in libya. it was a chance to try to reverse the tide of romney's recent perceived missteps, including his initial response to the libya attack. the republican con